AT&T TL7812 User manual

User’s manual
TL7812
DECT 6.0 cordless headset
and handset lifter

Congratulations
on your purchase of this AT&T product.
Unify your everyday business communications with the AT&T
TL7812 DECT 6.0 Cordless Headset and Handset Lifter. Whether
you want to connect directly to your corded telephone,
telephone line or computer, you can with the TL7812 headset.
Control costs and support your mobile workforce with
connectivity to Voice over IP (VoIP) services like SkypeTM and
Microsoft Lync . It comes with the TL7100 Handset Lifter, making
it convenient to answer and end calls right from the headset.
A magnetic charger in the cradle ensures the headset fits and
charges securely—so you’ll never run out of battery during long
calls. With up to 12 hours of hands-free talk time and a range of
up to 500 feet, you’re free to work wherever your work is.
Before using this AT&T product, please read the
Important safety information section on pages 59-61 of this
manual. Please thoroughly read this user’s manual for all the feature
operations and troubleshooting information necessary to install and
operate your new AT&T product. You can also visit our website at
www.telephones.att.com/smb or call
1 [phone]. In Canada, dial 1 [phone].
Visit www.smbtelephones.att.com/compatibility-finder
for a complete list of AT&T phones that have been tested and
found to be compatible with the TL7812.
Model number: TL7812
Type: DECT 6.0 cordless headset and handset lifter
Serial number:
Purchase date:
Place of purchase:
Both the model and serial numbers of your AT&T product can be
found on the bottom of the headset base and lifter.
Save your sales receipt and original packaging in case it is
necessary to return this product for warranty service.
© 2012 Advanced American Telephones. All Rights Reserved. AT&T and
the AT&T logo are trademarks of AT&T Intellectual Property licensed to
Advanced American Telephones, San Antonio, TX 78219. Printed in China.
The Skype name is a trademark of Skype.
Microsoft Lync is a registered trademark of Microsoft Corporation.

Parts checklist
Check to make sure the headset package includes the following
items. Save your sales receipt and original packaging in the
event warranty service is necessary.
User's manual
Quick start guide
Quick start guide
TL7812
DECT 6.0 cordless headset
and handset lifter
Telephone line cord Line splitter
Headset base
power adapter
Corded phone connection cable
Battery with battery
compartment cover attached
Cordless headset with
earbud attached
Headset base
User’s manual
TL7812
DECT 6.0 cordless headset
and handset lifter

Parts checklist
Auxiliary ring detectorLarge lifter padlifter padpad Anti-slip pad
Handset lifterlifter
USB cableBehind the neck band
Two over the ear hooksFive earbuds Over the head band

Optional accessory
This headset system can be expanded by registering a TL7800
accessory headset (sold separately) to it. The TL7800 includes an
expansion headset and a headset charger (up to two headsets
can be used with the same headset base).
For more information about the product, visit our website at
www.telephones.att.com/smb
TL7800

User’s manual
TL7812
DECT 6.0 cordless headset
and handset lifter
Table of contents
Getting started
Introduction...................................... 1
Quick reference guide -
headset........................................... 2
Headset lights ............................. 2
Headset alert tones.................. 4
Quick reference guide -
headset base ............................... 5
Headset base lights.................. 5
Quick reference guide -
handset lifter............................... 8
STATUS light...............................10
Installation......................................11
Colored labels...........................11
Digital subscriber line (DSL)....
11
Battery installation.....................12
Headset base installation
and battery charging ...........13
Headset base and handset
lifter installation.......................14
Installation options.................14
Option 1: Connect the
headset to a corded
phone............................................15
Option 2: Connect the
headset to a corded phone
and computer............................17
Option 3: Connect the
headset to a telephone
wall jack.......................................20
Adjust the corded handset
audio..............................................21
Attach the lifter........................22
Adjust the switch hook
presser position .......................23
Adjust the height of the
lifter arm......................................23
Lifter adjustments and
testing...........................................24
Installation of large
lifter pad (optional) ................25
Installation of anti-slip pad
(optional) .....................................25
About internal and auxiliary
ring detectors............................26
Install the auxiliary ring
detector........................................26
Ring detector on/off..............27
Adjust the sensitivity
level ...............................................27
Headset attachments ................28
Earbud...........................................28
Over the ear hook...................29
Over the head band...............32
Behind the neck band...........34

Operation
Headset operation ......................37
Power on/off the
headset.........................................37
PHONE mode and
PC mode......................................37
PHONE mode.................................38
Make a call..................................38
Answer a call.............................38
End a call.....................................39
Headset ringer ..........................39
Temporary ringer
silencing.......................................40
Call waiting.................................40
Options while on calls..............41
Volume control .........................41
Mute ...............................................42
Multiple headsets use ...........42
Switching between PHONE
mode and PC mode...............43
Adding and registering
headsets ......................................44
Register a headset to the
headset base.............................45
Deregistering headsets.............46
Deregister all headsets
from the headset base.........46
Appendix
Troubleshooting ...........................47
Maintenance...................................58
Important safety
information.................................59
Safety information...................59
Especially about cordless
headsets ......................................60
Precautions for users
of implanted cardiac
pacemakers ................................61
Pacemaker patients................61
FCC Part 68 and ACTA..............62
FCC Part 15....................................64
Limited warranty..........................65
Technical specifications ...........68
DECT 6.0 digital
technology..................................68
Operating range.......................68
Extended range and
clarity ............................................68
Encrypted for added
security.........................................68
Index
Index..................................................69

1
Introduction
The TL7812 is a cordless headset and base that allows you to
have handsfree phone conversations. The package also comes
with the TL7100 handset lifter, making it convenient to answer
and end calls right from the headset. It can be used in different
ways depending on your needs. Choose from the following three
options. Connect your TL7812:
To a traditional corded telephone (pages 15-16). Connect the
headset base to a corded telephone and install the lifter on
your corded telephone. You can use the headset to remotely
control the lifter for answering or hanging up a call.
To both a corded phone and computer (pages 17-19).
Connect the headset base to a corded telephone and install
the lifter on your corded telephone. Use the USB cable to
connect the headset base and your PC. You can make and
answer VoIP calls through Skype or Microsoft Lync, or landline
calls using the AT&T Softphone Call Manager.
Visit www.smbtelephones.att.com/downloads
to download the AT&T Softphone Call Manager. For
installation and operation instructions of the software, refer
to the Installation and Operation Guide which can also be
downloaded at
www.smbtelephones.att.com/downloads.
To a telephone line only (page 20). If you do not want to
install the lifter on the corded handset, you can simply connect
the headset to a telephone wall jack through the line splitter
provided. Use the telephones on the same telephone line to
make or answer calls. The headset is a supplementary device
that can join the calls.
•
•
•
Getting started

2
Getting started
light status
Red On when the headset is charging in the
headset base.
Flashes every 10 seconds to indicate the battery is
low when the headset is not in the headset base.
Flashes three times to indicate the headset is
powering off.
•
•
•
Blue On when a fully charged and registered headset is
in the headset base.
Flashes three times to indicate the headset is
powering on.
Flashes twice every three seconds when the headset
is in use.
Flashes four times every four seconds when there is
an incoming call in PHONE mode.
Flashes every 10 seconds when a fully charged
and registered headset in idle mode is out of the
headset base.
•
•
•
•
•
Red and blue Flashes slowly when the headset is not registered.
Flashes quickly when the headset is trying to
register to a headset base.
•
•
Off The battery is dead.
No battery is installed.
The headset is powered off.
•
•
•
Quick reference guide - headset
Headset lights
(On/off button and light)
Press to make, answer or end a call
(pages 38-39).
Getting started

3
Getting started
Quick reference guide - headset
VOL+/VOL-
Slide the volume switch
to the right or left to
adjust the headset
ringer volume while
in idle mode (page 39),
or the listening volume
while on a call
(page 41).
Earpiece
Microphone
The microphone
incorporates noise
canceling technology
for clearer calls.
FLASH
Press to answer an
incoming call when you
receive a call waiting alert
during a call (page 40).
Battery with cover
attached
Remove to replace the
battery.
MUTE
Press to mute the
microphone during a call
(page 42).
Press to mute the ringer in
the earpiece when there is
an incoming call (page 40).